STF up! 

Polite manner of saying, “shut the fuck up!” without the vulgarity.

As her small children looked on, she yelled: “STF up! you little four-legged yapping machine, go in the house, go to beddy!”

STF up! by Dr Bunnygirl August 8, 2019

STFUP

The abbr. of SHUT THE FUCK UP PLEASE. This is commonly used when used by a polite and very angry goody goody who cannot forget their manners, and involuntarily and accidentally adds please.

Ashley: lalalala
Jessica: STFU
Ashley: don't you mean STFUP?
Jessica: the hell is STFUP? STFUP?
Ashley: it means shut the fuck up please. jeez
Jessica: dork

STFUP by immaSYAUD June 27, 2009

stfuppercut 

It is a harsher version of the word stfu. It is as if u were telling someone to "stfu", but so much so that it is as if you were to uppercut them with it.

Man 1: HEY DUDE IM SO COOL!
Man 2: dude shutup.
Man 1: DUDE BUT IM SOOOOOO COOL!
Man 2: dude stfu!
Man 1: DUUUUUUUDE!!!! IM SOOOO COOL!!!!
Man 2: DUDE THATS IT!!! STFUPPERCUT!!!

stfuppercut by cornelio December 18, 2004

Stfupyafaafp 

Shut the fuck up Patrica your as flat as a fuckiñg pancake

Yo girl stfupyafaafp. Just some advice.

Stfupyafaafp by Alenathehoe October 16, 2019

stfup

shut the fuck up

oh my god dude stfup

stfup by Francis Naud February 18, 2009

STFUper powers 

The power to make people STFU (shut the **ck up)
another glorious turd of internet speak.
play on the words super powers

STFUper powers, activate! Form of Ball gag!

STFUper powers by TEEG November 4, 2009

stfuplzkthnx 

l33t for: shut the fuck up, please, ok, thanks.

A: u r teh sux0rz

B: stfuplzkthnx

stfuplzkthnx by g January 3, 2005